[c-nsp] 3750 DTP ?

[Jeff Fitzwater]

I have a 3750 connected to a non-cisco switch and have all ports on  
switch set to trunk and nonegotiate dot1Q.

I have been seeing ports transitioning from TRUNK to NON-TRUNK in  
logs.    I don't know why they would transition if they are in fixed  
TRUNK mode.

Doing a DEBUG DTP ALL I see the following as an example...

000501: Apr 17 15:20:37 EDT: DTP-state:Gi1/0/6:Starting state  
transition from state S1:OFF, event 1:IF DOWN ../dyntrk/dyntrk_fsm.c:631
000502: Apr 17 15:20:37 EDT: DTP-state:Gi1/0/6:Ending state transition  
to state S1:OFF ../dyntrk/dyntrk_fsm.c:659


Can't find info on this anywhere, but it appears DTP is running or the  
switch downstream is doing something.    The downstream is NOT CISCO.



We are running 12.2(37)SE1



Need some help on this one.



Thanks


Jeff Fitzwater
OIT Network Systems
Princeton University